Sudoku for a Greener Planet

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Can you make the world a better place by playing games? GOSUB 60 thinks so. The company has just released Sudoku Deluxe Green Edition for iPhone (iTunes link) where on-screen actions can turn into real-world benefits.

As you play Sudoku, you can accumulate up to three tree codes. Enter them into the game's Web page, and the game developer will make a donation to Trees for the Future for one tree each. The goal is to plant 100,000 trees. As of this writing, players have entered 63 codes, so get playing.

The iPhone game sells for $2.99. And Sprint customers will find it preloaded on the Samsung Reclaim, the cell phone made from bio-plastic materials.